Connecting-up
5.1 Permissible line supplies
Power Module PM240-2
48 Hardware Installation Manual, 01/2017, A5E33294624B AE
Additional requirements placed on the protective conductor ①:
● For permanent connection, the protective conductor must fulfill at least one of the
following conditions:
– The protective conductor is routed so that it is protected against damage along its
complete length.
Cables routed inside electrical cabinets or enclosed machine housings are considered
to be adequately protected against mechanical damage.
– As a conductor of a multi-conductor cable, the protective conductor has a cross-
section ≥ 2.5 mm² Cu.
– For an individual conductor, the protective conductor has a cross-section ≥ 10 mm²
Cu.
– The protective conductor consists of two conductors with the same cross-section.
● When connecting a multi-core cable using an industrial plug connector according to EN
60309, the protective conductor must have a cross-section of ≥ 2.5 mm² Cu.
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